Do I need a foam pad for my tank?

[ismvel]

I'm using one on my 55g....but only because it's on laminate wood flooring with foam under it. I'm not using one on the 85g because it's level and on porcelain tile.

Thanks Rob,

I don't want to use one, and I am on tile, so I think I will be okay. If I use it, it will place the tank over the tile which will not work out quite as well as I am hoping for my little project.